« Volver al listado

CVE-2026-89878

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

media: s2255: check firmware size before reading trailing marker

s2255_probe() reads a 4-byte marker and version from the last 8 bytes of the firmware blob (fw->data[fw_size - 8] and [fw_size - 4]). If the firmware file is shorter than 8 bytes, fw_size - 8 underflows and the access reads out of bounds. Validate the firmware size before indexing.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-89878",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "6f6a5b0b0a84c2de0e152f2841e57bc226db924f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "8eca0f85eeb0789be40e637bcf9a21c4265b6c6f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "ffc27411ea60b8a09f1fea3d664b65210fdeb454",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "5626785b0e4665326e4d96736c106161da09b2f0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "342632a4d8ba3fafc1556deee0b7a48dd7860336",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "7d221859ba45d7228d0138c9a3e55bd3bb31e14e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "14d962602c8bf86e63c9b9272be1f0360d0a448a",
              "lessThan": "330f2936ab768c7215322a476f033143e8891d28",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/media/usb/s2255/s2255drv.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.28"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.28",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/media/usb/s2255/s2255drv.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-16T11:16:56.100",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/330f2936ab768c7215322a476f033143e8891d28",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/342632a4d8ba3fafc1556deee0b7a48dd7860336",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5626785b0e4665326e4d96736c106161da09b2f0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6f6a5b0b0a84c2de0e152f2841e57bc226db924f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7d221859ba45d7228d0138c9a3e55bd3bb31e14e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8eca0f85eeb0789be40e637bcf9a21c4265b6c6f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ffc27411ea60b8a09f1fea3d664b65210fdeb454",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: s2255: check firmware size before reading trailing marker\n\ns2255_probe() reads a 4-byte marker and version from the last 8 bytes\nof the firmware blob (fw->data[fw_size - 8] and [fw_size - 4]). If the\nfirmware file is shorter than 8 bytes, fw_size - 8 underflows and the\naccess reads out of bounds. Validate the firmware size before indexing."
    }
  ],
  "lastModified": "2026-09-16T11:16:56.100",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}